Spoto Mark

SEC source: 0001836585-26-000011 · form4-06122026_080659.xml · derivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,209

Underlying: Common Stock · 6,209 shares

Expires 2036-06-10

F5 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 11, 2026, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001836585-26-000011 · form4-06122026_080659.xml · derivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,656

Underlying: Common Stock · 13,656 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F4 · derivative.exercise_date: The RSUs become fully vested on June 11, 2027 or the day prior to the 2027 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F4 · derivative.expiration_date: The RSUs become fully vested on June 11, 2027 or the day prior to the 2027 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001836585-26-000011 · form4-06122026_080659.xml · derivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,083 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F3 · derivative.exercise_date: The RSUs became fully vested on June 10, 2026, the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs became fully vested on June 10, 2026, the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

SEC source: 0001836585-26-000011 · form4-06122026_080659.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,346

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 17

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 10,867 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The warrant to acquire common stock automatically net exercised into shares of the Issuer's common stock immediately prior to consummation of the IPO. The warrant had an exercise price of $11.1747 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 4,671 of the warrant shares to pay the exercise price and issuing to the holder the remaining 6,196 shares.

F5 · derivative.expiration_date: The warrant to acquire common stock automatically net exercised into shares of the Issuer's common stock immediately prior to consummation of the IPO. The warrant had an exercise price of $11.1747 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 4,671 of the warrant shares to pay the exercise price and issuing to the holder the remaining 6,196 shares.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 16

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 223,719 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 15

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 50,829 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 14

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 83,402 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 13

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 221,391 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 12

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 343,934 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 11

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 313,073 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 10

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 513,701 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 9

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 189,652 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 8

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 311,186 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 7

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 835,740 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · derivative · entry 6

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,371,302 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · nonDerivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 966,238

F5 · price: The warrant to acquire common stock automatically net exercised into shares of the Issuer's common stock immediately prior to consummation of the IPO. The warrant had an exercise price of $11.1747 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 4,671 of the warrant shares to pay the exercise price and issuing to the holder the remaining 6,196 shares.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · nonDerivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 970,909

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: The warrant to acquire common stock automatically net exercised into shares of the Issuer's common stock immediately prior to consummation of the IPO. The warrant had an exercise price of $11.1747 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 4,671 of the warrant shares to pay the exercise price and issuing to the holder the remaining 6,196 shares.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · nonDerivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 960,042

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · nonDerivative · entry 2

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,413,578

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000009 · form4-05122026_040512.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,319,211

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.

SEC source: 0001836585-26-000002 · form4-02032026_080201.xml · nonDerivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,263

SEC source: 0001836585-26-000002 · form4-02032026_080201.xml · nonDerivative · entry 2

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By spouse

Disclosed balance after: 0

SEC source: 0001836585-26-000002 · form4-02032026_080201.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By spouse

Disclosed balance after: 928

SEC source: 0001562180-25-004801 · primarydocument.xml · derivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,516

Underlying: Common Stock · 6,516 shares

Expires 2035-06-11

F6 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 12, 2025, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001562180-25-004801 · primarydocument.xml · derivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,083

Underlying: Common Stock · 14,083 shares

Expires not disclosed

F4 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F5 · derivative.exercise_date: The RSUs become fully vested on June 12, 2026 or the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F5 · derivative.expiration_date: The RSUs become fully vested on June 12, 2026 or the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001562180-25-004801 · primarydocument.xml · derivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,364 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

F3 · derivative.exercise_date: The RSUs became fully vested on June 11, 2025, the day prior to the 2025 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs became fully vested on June 11, 2025, the day prior to the 2025 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

SEC source: 0001562180-25-004801 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,335

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

SEC source: 0001562180-25-003896 · primarydocument.xml · nonDerivative · entry 2

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,971

SEC source: 0001562180-25-003896 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,971

SEC source: 0001562180-24-005065 · primarydocument.xml · derivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,996

Underlying: Common Stock · 15,996 shares

Expires 2033-06-15

F6 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 13, 2024, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001562180-24-005065 · primarydocument.xml · derivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,364

Underlying: Common Stock · 11,364 shares

Expires not disclosed

F4 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F5 · derivative.exercise_date: The RSUs become fully vested on June 13, 2025 or the day prior to the 2025 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F5 · derivative.expiration_date: The RSUs become fully vested on June 13, 2025 or the day prior to the 2025 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001562180-24-005065 · primarydocument.xml · derivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,777 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

F3 · derivative.exercise_date: The RSUs became fully vested on June 12, 2024, the day prior to the 2024 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs became fully vested on June 12, 2024, the day prior to the 2024 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

SEC source: 0001562180-24-005065 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,971

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

SEC source: 0001562180-23-005307 · primarydocument.xml · derivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,076

Underlying: Common Stock · 12,076 shares

Expires 2033-06-15

F6 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 15, 2023, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001562180-23-005307 · primarydocument.xml · derivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,777

Underlying: Common Stock · 7,777 shares

Expires not disclosed

F4 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F5 · derivative.exercise_date: The RSUs become fully vested on June 15, 2024 or the day prior to the 2024 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F5 · derivative.expiration_date: The RSUs become fully vested on June 15, 2024 or the day prior to the 2024 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001562180-23-005307 · primarydocument.xml · derivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,771 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

F3 · derivative.exercise_date: The RSUs became fully vested on June 14, 2023, the day prior to the 2023 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs became fully vested on June 14, 2023, the day prior to the 2023 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

SEC source: 0001562180-23-005307 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,194

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.

SEC source: 0001562180-22-007879 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,423

SEC source: 0001562180-22-005198 · primarydocument.xml · derivative · entry 5

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,970

Underlying: Common Stock, par value $0.001 · 7,970 shares

Expires 2032-06-16

F6 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 16, 2022, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001562180-22-005198 · primarydocument.xml · derivative · entry 4

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,771

Underlying: Common Stock, par value $0.001 · 4,771 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F5 · derivative.exercise_date: The RSUs become fully vested on June 16, 2023 or the day prior to the 2023 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F5 · derivative.expiration_date: The RSUs become fully vested on June 16, 2023 or the day prior to the 2023 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001562180-22-005198 · primarydocument.xml · derivative · entry 3

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 1,379 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F4 · derivative.exercise_date: The RSUs became fully vested on June 15, 2022, the day prior to the 2022 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

F4 · derivative.expiration_date: The RSUs became fully vested on June 15, 2022, the day prior to the 2022 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date.

SEC source: 0001562180-22-005198 · primarydocument.xml · nonDerivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,838

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F2 · balance_after: The number of shares reported reflect the receipt of shares pursuant to pro rata distributions in kind effected, subsequent to the reporting person's most recent Form 4, by Razor's Edge Fund LP, RE Sidecar 4, LLC and Yodabyte Investments, LLC to their respective partners and members, including the reporting person and Razor's Edge Ventures, LLC, for no additional consideration. The receipt of such shares by the reporting person and Razor's Edge Ventures, LLC constituted a change in form of ownership, which was exempt from reporting pursuant to Rule 16a-13.

SEC source: 0001104659-21-083133 · tm2120211-7_4seq1.xml · derivative · entry 2

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,379

Underlying: Common Stock, par value $0.001 · 1,379 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.

F3 · derivative.exercise_date: The RSUs become fully vested on June 17, 2022 or the 2022 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs become fully vested on June 17, 2022 or the 2022 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.

SEC source: 0001104659-21-083133 · tm2120211-7_4seq1.xml · derivative · entry 1

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,455

Underlying: Common Stock, par value $0.001 · 2,455 shares

Expires 2031-06-17

F1 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 17, 2021, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001104659-20-138746 · tm2039218-1_4seq1.xml · derivative · entry 10

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 59,602 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by Yodabyte Investments, LLC. The reporting person is a managing member of Yodabyte Investments, LLC and may be deemed to be the beneficial owner of the securities held by Yodabyte Investments, LLC. The reporting person disclaims beneficial ownership of the securities held by the Yodabyte Investments, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-20-138746 · tm2039218-1_4seq1.xml · derivative · entry 9

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 109,064 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F4 · ownership.nature: These securities are owned directly by Yodabyte Investments, LLC. The reporting person is a managing member of Yodabyte Investments, LLC and may be deemed to be the beneficial owner of the securities held by Yodabyte Investments, LLC. The reporting person disclaims beneficial ownership of the securities held by the Yodabyte Investments, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-20-138746 · tm2039218-1_4seq1.xml · derivative · entry 8

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 92,705 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by RE Sidecar 4, LLC. The reporting person is a managing member of RE Sidecar 4, LLC and may be deemed to be the beneficial owner of the securities held by RE Sidecar 4, LLC. The reporting person disclaims beneficial ownership of the securities held by the RE Sidecar 4, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-20-138746 · tm2039218-1_4seq1.xml · derivative · entry 7

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 246,151 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F3 · ownership.nature: These securities are owned directly by RE Sidecar 4, LLC. The reporting person is a managing member of RE Sidecar 4, LLC and may be deemed to be the beneficial owner of the securities held by RE Sidecar 4, LLC. The reporting person disclaims beneficial ownership of the securities held by the RE Sidecar 4, LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-20-138746 · tm2039218-1_4seq1.xml · derivative · entry 6

Spoto Mark · CIK 0001836585 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, par value $0.001 · 360,586 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock (collectively, the "Preferred Shares") converted into 0.61459 shares of the Issuer's Common Stock automatically upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Shares were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering, and had no expiration date.

F2 · ownership.nature: These securities are owned directly by Razor's Edge Fund LP. The reporting person is a managing member of Razor's Edge Fund LP and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund LP. The reporting person disclaims beneficial ownership of the securities held by the Razor's Edge Fund LP except to the extent of his pecuniary interest therein.